package com.yumeko.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

/**
 * @program: SpringCloud
 * @description:
 * @author: Zheng Hao
 * @create: 2020-03-09 18:39
 */
@Service
public class PaymentService {

    public String paymentInfoOK(Integer id) {
        return "线程池: " + Thread.currentThread().getName() + "paymentInfoOK.id: " + id + "\t" + "o(∩_∩)o 哈哈";
    }

    @HystrixCommand(fallbackMethod = "paymentInfoTimeOutHandler", commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "2000")
    })
    public String paymentInfoTimeOut(Integer id) {
        try {
            TimeUnit.SECONDS.sleep(3);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池: " + Thread.currentThread().getName() + "paymentInfoTimeOut.id: " + id + "\t" + "(┬＿┬) 耗时3秒钟";
    }

    public String paymentInfoTimeOutHandler(@PathVariable("id") Integer id) {
        return "宝贝服务有点忙!! paymentInfoTimeOut.id: " + id + "\t" + "(┬＿┬) ";
    }

    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback", commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled", value = "true"),//是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"),//请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"),//时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60"),//失败达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id) {
        if (id < 0) {
            throw new RuntimeException("id 不能为负数");
        }
        String serialNumber = IdUtil.simpleUUID();
        return Thread.currentThread().getName() + "\t" + "调用成功,流水号:" + serialNumber;
    }

    public String paymentCircuitBreaker_fallback(Integer id) {
        return "id 不能为负数,请稍后再试, (┬＿┬)  id:" + id;
    }
}
